Your hot water system works quietly in the background until the day it doesn’t — and then it becomes the most urgent item on your to-do list. Whether your current unit is failing or you’re building a new home, taking the time to plan before you buy a hot water system can save you money, hassle, and a few cold showers down the track.
Here’s what to think about before making the purchase.
1. Understand Your Household’s Hot Water Needs
The size of your household directly affects how much hot water you’ll use daily. A single person or couple has very different demands than a family of five. Buying a unit that’s too small means running out of hot water during peak times; too large, and you’re paying to heat water you don’t need.
Consider:
- Number of people in the home
- Peak usage times (mornings, evenings)
- Number of bathrooms and appliances using hot water (dishwasher, washing machine)
2. Compare the Types of Systems Available
There are several types of systems on the market, each with different upfront costs, running costs, and installation requirements:
- Electric storage systems – affordable upfront, but higher running costs
- Gas storage or continuous flow systems – efficient and quick to heat, ideal for larger households
- Heat pump systems – energy-efficient and better for the environment, though pricier initially
- Solar hot water systems – lower long-term running costs, great for sunny climates, but higher installation cost
Understanding how each type works will help you choose a hot water system that matches your budget and lifestyle rather than just picking the cheapest option on the shelf.
3. Factor in Energy Efficiency and Running Costs
It’s tempting to focus only on the purchase price, but running costs add up significantly over the life of the unit — often ten years or more. Look for energy star ratings and calculate the estimated annual running cost before you decide. A slightly more expensive unit upfront can end up saving you hundreds of dollars a year.
4. Check Your Home’s Existing Setup
Not every home is suited to every system. Consider:
- Do you already have gas connected, or would that require new infrastructure?
- Is there suitable roof space and sun exposure for solar?
- Where is the current unit located, and does it need to stay in the same spot?
These practical details can significantly affect installation cost and complexity.
5. Think About Installation and Maintenance
Installation isn’t a DIY job — it requires a licensed plumber or electrician, and sometimes both. Ask about:
- Installation costs on top of the unit price
- Warranty length and what it covers
- Ongoing maintenance requirements (e.g. anode replacement for storage tanks)
6. Set a Realistic Budget
When you buy a hot water system, remember to budget for the unit itself, installation, any necessary upgrades to plumbing or electrical, and potential removal of the old system. Getting multiple quotes from licensed professionals will give you a clearer picture of the total cost.
7. Consider Long-Term Value, Not Just Price
The cheapest system today isn’t always the most cost-effective choice over its lifespan. Balance purchase price against energy efficiency, expected lifespan, and warranty coverage to get the best overall value.
Final Thoughts
Buying a new hot water system is a decision that affects your daily comfort and your energy bills for years to come. By considering your household’s needs, comparing system types, checking your home’s setup, and weighing running costs against upfront price, you’ll be well equipped to choose a hot water system that suits your home and budget — without the guesswork.
